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Hey everyone I have a question on TBR Example 7.2b in the 2nd Physics book.
A swimmer is at the bottom of a 5-meter pool, where the gauge pressure (pgh) is approximately 0.5Patm. If the swimmer rises to the surface, by how much does the total pressure change?
A. The total pressure increases by 33%
B. The total pressure increases by 66%
C. The total pressure decreases by 33%
D. The total pressure decreases by 66%
So using Ptotal = Patm + Pgauge
Initially
Ptotal = 1.5 atm
Final
Ptotal = 1 atm
So 1/1.5 = 66% so shouldn't the pressure decrease by 66%? What am I doing wrong? The answer is C btw. Thanks!
A swimmer is at the bottom of a 5-meter pool, where the gauge pressure (pgh) is approximately 0.5Patm. If the swimmer rises to the surface, by how much does the total pressure change?
A. The total pressure increases by 33%
B. The total pressure increases by 66%
C. The total pressure decreases by 33%
D. The total pressure decreases by 66%
So using Ptotal = Patm + Pgauge
Initially
Ptotal = 1.5 atm
Final
Ptotal = 1 atm
So 1/1.5 = 66% so shouldn't the pressure decrease by 66%? What am I doing wrong? The answer is C btw. Thanks!